<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <style>
      /* loading.css */
      .loader {
        position: absolute;
        top: 0px;
        bottom: 0px;
        left: 0px;
        right: 0px;
        margin: auto;
        width: 175px;
        height: 100px;
      }
      .loader span {
        display: block;
        background: #e04960;
        width: 7px;
        height: 100%;
        border-radius: 14px;
        margin-right: 5px;
        float: left;
        animation: load 2.5s infinite linear;
      }
      .loader span:last-child {
        margin-right: 0px;
      }
      .loader span:nth-child(1) {
        animation-delay: -1.1s;
      }
      .loader span:nth-child(2) {
        animation-delay: -1.3s;
      }
      .loader span:nth-child(3) {
        animation-delay: -1.5s;
      }
      .loader span:nth-child(4) {
        animation-delay: -1.7s;
      }
      .loader span:nth-child(5) {
        animation-delay: -1.9s;
      }
      .loader span:nth-child(6) {
        animation-delay: -2.1s;
      }
      .loader span:nth-child(7) {
        animation-delay: -2.3s;
      }
      .loader span:nth-child(8) {
        animation-delay: 0s;
      }
      .loader span:nth-child(9) {
        animation-delay: -2.3s;
      }
      .loader span:nth-child(10) {
        animation-delay: -2.1s;
      }
      .loader span:nth-child(11) {
        animation-delay: -1.9s;
      }
      .loader span:nth-child(12) {
        animation-delay: -1.7s;
      }
      .loader span:nth-child(13) {
        animation-delay: -1.5s;
      }
      .loader span:nth-child(14) {
        animation-delay: -1.3s;
      }
      .loader span:nth-child(15) {
        animation-delay: -1.1s;
      }
      @keyframes load {
        0% {
          background: #531430;
          transform: scaleY(0.08);
        }
        50% {
          background: #e04960;
          transform: scaleY(1);
        }
        100% {
          background: #531430;
          transform: scaleY(0.08);
        }
      }
    </style>
  </head>
  <body>
    <div class="loader">
      <span></span>
      <span></span>
      <span></span>
      <span></span>
      <span></span>
      <span></span>
      <span></span>
      <span></span>
      <span></span>
      <span></span>
      <span></span>
      <span></span>
      <span></span>
      <span></span>
      <span></span>
    </div>
  </body>
</html>
